Table 2.
Benzene | Cyclohexane | EB | n-Heptane | n-Hexane | Toluene | THC | TMBs | Xylenes, totalb | 2-BE | d-Limonene | Grand total | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Personal samples (N)c | 26 161 | 3361 | 26 161 | 3361 | 3361 | 26 161 | 26 161 | 3361 | 26 161 | 941 | 221 | 14 5411 |
Lab 1 | 4615 | 3361 | 4615 | 3361 | 3361 | 4615 | 4615 | 3361 | 4615 | 941 | 0 | 37 460 |
Lab 2 | 21 546 | 0 | 21 546 | 0 | 0 | 21 546 | 21 546 | 0 | 21 546 | 0 | 221 | 107 951 |
Personal samples censored prior to recalculation (N) | 25 403 | 3036 | 25 564 | 2906 | 2730 | 24 985 | 21 738 | 3094 | 25 188 | 752 | 89 | 135 485 |
Lab 1 | 4541 | 3036 | 4198 | 2906 | 2730 | 4061 | 2225 | 3094 | 3877 | 752 | 0 | 31 420 |
Lab 2 | 20 832 | 0 | 21 366 | 0 | 0 | 20 924 | 19 513 | 0 | 21 311 | 0 | 89 | 104 065 |
Percentage of censored samples prior to recalculation | 97.1 | 90.3 | 97.7 | 86.5 | 81.2 | 95.5 | 83.1 | 92.1 | 96.3 | 79.9 | 40.3 | 93.2 |
Lab 1 | 98.4% | 90.3% | 91.0% | 86.5% | 81.2% | 88.0% | 48.2% | 92.1% | 84.0% | 79.9% | 83.9% | |
Lab 2 | 96.8% | 0.0% | 99.2% | 0.0% | 0.0% | 97.1% | 90.6% | 0.0% | 98.9% | 0.0% | 40.3% | 96.4% |
Personal samples censored after recalculation (N) | 23 210 | 2354 | 22 523 | 1946 | 1716 | 17 544 | 2920 | 1517 | 13 702 | 548 | 28 | 88 008 |
Lab 1 | 4039 | 2354 | 2576 | 1946 | 1716 | 1701 | 1031 | 1517 | 1765 | 548 | 28 | 19 193 |
Lab 2 | 19 171 | 0 | 19 947 | 0 | 0 | 15 843 | 1889 | 0 | 11 937 | 0 | 0 | 68 815 |
Percentage of censored samples after recalculation | 88.7 | 70.0 | 86.1 | 57.9 | 51.1 | 67.1 | 11.2 | 45.1 | 52.4 | 58.2 | 12.7 | 60.5 |
Lab 1 | 87.5% | 70.0% | 55.8% | 57.9% | 51.1% | 36.9% | 22.3% | 45.1% | 38.2% | 58.2% | 0.0% | 51.2% |
Lab 2 | 89.0% | 0.0% | 92.6% | 0.0% | 0.0% | 73.5% | 8.8% | 0.0% | 55.4% | 0.0% | 12.7% | 63.8% |
Reduction in percentage censoring | 8.4% | 20.3% | 11.6% | 28.6% | 30.2% | 28.4% | 71.9% | 46.9% | 43.9% | 21.7% | 27.6% | 32.7% |
Lab 1 | 10.9% | 20.3% | 35.1% | 28.6% | 30.2% | 51.1% | 25.9% | 46.9% | 45.8% | 21.7% | 0.0% | 32.6% |
Lab 2 | 7.9% | 0.0% | 6.6% | 0.0% | 0.0% | 23.6% | 81.8% | 0.0% | 43.5% | 0.0% | 27.6% | 32.7% |
a 2-BE, 2-butoxyethanol; EB, ethylbenzene; RP, Responsible Party; THC, total hydrocarbons; TMBs, trimethylbenzenes.
b m-, o-, and p-isomers.
c Lab 1 primarily collected and analyzed offshore measurements; lab 2 primarily collected near shore and land measurements.